In the video posted on her ModernMom blog, the 41-year-old actress and TV host explained that a nodule was discovered on her thyroid and after a series of tests over the last few months, it was eventually determined to be cancerous and her thyroid will have to be removed.

"Which means that I'm going to have a nice big scar right here across my neck," Brooke said. "And I don't get to just walk around and pretend like nothing happened or not follow up or not share it, because it's going to be pretty much dead center."

Brooke said the discovery, which originated from a regular physical, came as a complete shock because she's otherwise healthy. "As crazy as it is, my head is in the right place, and it's going to be good," she said, adding that the doctors consider this a form of "good cancer" compared to many others and the prognosis is good. "I'm just going to make a positive out of this negative thing."